EP 2355361 A2 20110810 - DC offset cancellation in direct conversion receivers
Title (en)
DC offset cancellation in direct conversion receivers
Title (de)
Kompensation von Gleichspannungsversatz in Direktmischempfängern
Title (fr)
Annulation de décalage CC dans des récepteurs de conversion directe
Publication
Application
Priority
US 30112010 P 20100203
Abstract (en)
A method includes receiving a signal using a direct conversion receiver, while the receiver is set at a gain that is selected from a range of possible gain values. Multiple DC offset correction values are provided for use by a DC offset cancellation loop, each DC offset correction value being associated with a respective sub-range of the range of the possible gain values. A DC offset correction value is selected from among the multiple DC offset correction values based on the gain to which the receiver is set. A DC offset in the signal is canceled by setting the DC offset cancellation loop to the selected DC offset correction value.
IPC 8 full level
H04B 1/30 (2006.01); H04L 25/06 (2006.01)
CPC (source: EP US)
H04B 1/30 (2013.01 - EP US); H04L 25/061 (2013.01 - US)
Citation (applicant)
US 61301120 A
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2355361 A2 20110810; EP 2355361 A3 20150610; EP 2355361 B1 20181010; CN 102195911 A 20110921; CN 102195911 B 20150902; US 2011188612 A1 20110804; US 2014105331 A1 20140417; US 8638883 B2 20140128; US 8831143 B2 20140909
DOCDB simple family (application)
EP 11152977 A 20110202; CN 201110036091 A 20110209; US 201113018449 A 20110201; US 201314138074 A 20131222